Greensburg, IN: frost dates by year

Last spring and first fall frost at NOAA station USC00123547, 1951 to 2020, measured from daily minimum temperatures.

Elevation 937 ft, 39.347, -85.489. Download the data (JSON), NOAA daily records

Summary at 32°F

	Last spring frost	First fall frost
Median	Apr 23	Oct 15
Earliest	Mar 28 (1999)	Sep 13 (1953)
Latest	Jun 1 (1966)	Nov 20 (1985)
Trend	4.4 days earlier per decade	3.8 days later per decade
Years with data	67	66

At 28°F (hard freeze) the median last spring date is Apr 9 and the median first fall date is Oct 23.

The trend is a straight-line fit through the years with a freeze. A positive spring trend means the last frost now comes later. Short or patchy records give noisy trends.

Chart

Last spring frost (32°F)

First fall frost (32°F)

Dots are single years. The gray line is the median, the green line the fitted trend.

Year by year

Year	Last spring 32°F	First fall 32°F	Last spring 28°F	First fall 28°F
2020	May 9	no data	May 9	no data
2019	Apr 2	Oct 31	Apr 1	Nov 1
2018	Apr 29	Oct 18	Apr 10	Oct 21
2017	Apr 8	Oct 26	Mar 23	Nov 10
2016	no data	Nov 11	no data	Nov 12
2015	no data	Oct 17	no data	Oct 18
2014	Apr 17	no data	Apr 16	no data
2013	Apr 20	Oct 22	Apr 3	Oct 25
2012	no data	Oct 8	no data	Nov 4
2011	Apr 2	no data	Apr 1	no data
2010	Mar 31	Oct 29	Mar 27	Nov 6
2009	Apr 9	Oct 17	Mar 21	Oct 18
2008	Apr 16	Oct 28	Mar 29	Nov 10
2007	Apr 10	Oct 29	Apr 9	Nov 7
2006	Apr 9	Oct 12	Mar 27	Oct 25
2005	May 3	Oct 26	Mar 24	Oct 29
2004	Apr 14	Nov 8	Apr 5	Dec 14
2003	Apr 23	Oct 2	Mar 31	Nov 8
2002	Apr 9	Nov 2	Apr 9	Nov 18
2001	Apr 18	Oct 7	Apr 18	Oct 28
2000	Apr 9	Oct 7	Apr 9	Nov 17
1999	Mar 28	Oct 21	Mar 27	Nov 3
1998	Apr 11	Oct 23	Mar 25	Nov 5
1997	Apr 18	Oct 15	Apr 18	Oct 22
1996	Apr 17	Oct 19	Apr 17	Nov 2
1995	Apr 6	Oct 25	Apr 6	Nov 3
1994	May 2	Oct 27	Apr 7	Nov 23
1993	Apr 22	Oct 10	Mar 20	Nov 2
1992	Apr 5	Oct 17	Apr 5	Oct 19
1991	Apr 11	Oct 16	Mar 31	Oct 16
1990	Apr 18	Oct 19	Apr 18	Oct 26
1989	Apr 13	Oct 9	Apr 11	Nov 3
1988	Apr 25	Oct 12	Mar 22	Oct 12
1987	Apr 5	Oct 4	Apr 4	Nov 6
1986	Apr 23	Nov 10	Apr 23	Nov 10
1985	Apr 10	Nov 20	Apr 10	Nov 21
1984	Apr 20	Nov 3	Mar 31	Nov 13
1983	Apr 25	Sep 23	Apr 20	Oct 13
1982	Apr 21	Oct 17	Apr 8	Oct 17
1981	Apr 21	Oct 3	Mar 25	Oct 3
1980	Apr 25	Oct 5	Mar 27	Oct 13
1979	May 1	Oct 10	Apr 10	Oct 14
1978	May 2	Oct 8	Mar 18	Oct 24
1977	Apr 29	Oct 13	Mar 25	Oct 17
1976	May 8	Oct 18	Apr 28	Oct 18
1975	Apr 21	Oct 30	Apr 13	Nov 15
1974	May 7	Sep 23	Apr 16	Oct 3
1973	May 18	Oct 16	Apr 14	Oct 16
1972	Apr 27	Oct 15	Apr 9	Oct 20
1971	May 4	no data	May 4	no data
1970	May 3	Sep 29	Apr 7	Oct 17
1969	Apr 25	Oct 15	Mar 31	Oct 18
1968	May 6	Oct 4	May 6	Oct 5
1967	May 16	Oct 11	May 3	Oct 12
1966	Jun 1	Sep 16	May 10	Oct 2
1965	Apr 29	Sep 25	Apr 3	Oct 4
1964	Apr 15	Sep 14	Apr 10	Oct 5
1963	May 24	Sep 30	May 2	Sep 30
1962	Apr 24	Sep 21	Apr 20	Oct 24
1961	May 27	Oct 15	May 27	Oct 15
1960	May 8	Oct 17	May 2	Oct 21
1959	May 16	Oct 12	Apr 23	Oct 18
1958	Apr 30	Oct 1	Apr 30	Oct 30
1957	May 6	Oct 11	May 6	Oct 11
1956	May 8	Sep 21	Apr 23	Oct 27
1955	May 9	Oct 15	Apr 8	Oct 25
1954	May 21	Oct 18	May 10	Oct 18
1953	Apr 21	Sep 13	Apr 21	Oct 8
1952	Apr 17	Oct 3	Apr 16	Oct 7
1951	Apr 23	Oct 9	Apr 23	Oct 9

"none" means the station recorded no freeze at that threshold in that half of the year. "no data" means more than 10% of the season's daily readings were missing. Years with no usable data are left out. See the methodology for the rules, and the ZIP lookup for 1991 to 2020 frost probabilities.